5 Shore A RTV 2 Addition Cure Silicone Mold Rubber For Strawberry Candy
Technical datasheet of 5 Shore A RTV 2 Addition Cure Silicone Food Grade Mold Rubber
| Item No. |
MCPLA-L05 |
| Color |
Translucent/can be customized |
| Viscosity ( cps,approx.) |
3500-6000 |
| Mix ratio (A:B) |
1:1 |
| Working time(at 25ºC ,minutes) |
30-40 (can be adjusted) |
| Curing time(at 25ºC,hrs,approx.) |
4-6 (can be adjusted) |
| Hardness Shore A(after 24 h) |
5 |
| Tensile Strength(Mpa,after 24 h) |
3.2 |
| Elongation(%) |
650 |
| Tear Strength(N/mm) |
12 |
| Linear Shrinkage (%) |
0. 1 |
Two-component addition type silicone rubber is a two-part, platinum-catalyzed, liquid silicone system that cures (RTV) to rubber elastomer . The polymerization can be accelerated by heat. The silicone components are delivered as liquids,which once mixed and cured into a transparent, elastic and resistant material. Polymerization occurs without formation of heat.
Characteristics of 5 Shore A RTV 2 Addition Cure Silicone Food Grade Mold Rubber
Convenient to operate because the RTV property
Easy to mix due to the low viscosity (4000~6000Cps)
High duplication because of high tear and tensile strength
Long shelf life with low shrinkage
Can be accelerated for rapid cure
Application of 5 Shore A RTV 2 Addition Cure Silicone Food Grade Mold Rubber
1.A range of materials can be cast into the cured silicone mold:
polyurethane and other reactive resins
Small pieces of cement,plaster,concrete products.
Food like chocolate,fondants
Wax,candle,soap;
Low melt metal
2.casting body parts,shoe insole,cloth label,texture coating.
Instructions of 5 Shore A RTV 2 Addition Cure Silicone Food Grade Mold Rubber
1. Mixing the two components
According the mixing ration 1:1 weighting A and B, the two components may be thoroughly mixed either by hand or using a low-speed electric to minimize the degassing of bubbles and to avoid any temperature increase.
Note: It is also possible to use a special mixing and dispensing machine for the silicone components, further information is available upon request.
2. Moulding
The mixture should be degassed preferably at 30 to 50 mbar to eliminate any entrapped air. If a dispensing machine is used, the two components are degassed separately prior to mixing. The silicone mixture expands to 3-4 times of its initial volume and bubbles rise to the surface. The bubbles progressively disappear and the mixture returns to its initial volume after 5 to 10 minutes. Wait a few minutes to complete the degassing and then flash the vacuum. The silicone is ready for pouring, either by gravity or under low pressure.
Note: Flashing the vacuum once or twice accelerates the degassing. It is recommended to use a container with a high diameter/height ratio (3 to 4 times of the initial volume)
3. Polymerisation
The curing may be slowed down at lower temperature or accelerated by applying heat.
Note:
1.Contamination from sulfur (e.g., sulfur-based clay), amines, tin compounds, cured polyester resin, some paints and some silicone rubbers may inhibit surface cure of platinum-cured rubbers.
2.Apply a release agent, Although not usually necessary, a release agent will make demolding easier when casting into most surfaces.
Note: It is strongly recommended that entrapped air be removed in a vacuum chamber, allowing the mix to completely expand and then collapse. After a further 1-2 mins under vacuum, the mix should be inspected and can be used if free of air bubbles. A volume increase of 3-5 times will occur on vacuum de-airing the mixture. So a suitably large container should be chosen.
Storage of 5 Shore A RTV 2 Addition Cure Silicone Food Grade Mold Rubber
When the platinum RTV-2 Silicone Rubber is stored at or below 30 ° C (85° F) in the original unopened containers, RTVsilicone base and C520 curing agent have a usable life of
12 months from the date of production.
Packaging of 5 Shore A RTV 2 Addition Cure Silicone Food Grade Mold Rubber
1kg=504kg pallet, 5kg/drum=600kg/pallet, 10kg, 20kg per plastic drum=480kg per pallet
200kg per drum, 800kg per pallet. Other types of package, please check with our sales representative.
Professional factory of RTV2 silicone:
We are manufacturer, and specialized in manufacturing different hardness, different viscosity silicone rubber series, we are competitive in price with good quality.
Should you have any question, please feel free to contact us.
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